# A016252 (b-file synthesized from sequence entry)
0 1
1 18
2 237
3 2770
4 30501
5 324618
6 3383437
7 34795170
8 354677301
9 3593852218
10 36268076637
11 364987647570
12 3666024644101
13 36773283619818
14 368524096449837
15 3690779786259970
16 36946569614930901
17 369737098415627418